We consider a kind of higher order tangent space of a closed subset X C R. There is an easy algebraic definition of the higher order tangent bundle T of X following the construction of the Zariski tangent space in algebraic geometry, which is called the Zariski paratangent bundle by Bier...
Tangent Cones, Tangent Spaces, Tangent Stars: Secant, Tangent, Tangent Star and Dual Varieties of an Algebraic Variety 来自 Semantic Scholar 喜欢 0 阅读量: 48 作者: F Russo 摘要: We recall the definitions of tangent cone, tangent space, tangent star to a variety at a fixed point, define ...
If this is an affine subspace of V then the point x is called a smooth point of ∂K and ∂K is said to be differentiable at x and TK is the ordinary tangent space to ∂K at x. Definition in algebraic geometryy2 = x3 + x2 (red) with tangent cone (blue)...
The Classical Case When n = 1 : On the Tangent Space to the Space of Algebraic Cycles on a Smooth Algebraic Variety. (AM-157) Reasons for the apparent pause in the rise of global-mean surface air temperature (SAT) after the turn of the century has been a mystery, undermining confi.....
The map from the tangent space to the Hilbert scheme to the tangent space to algebraic cycles passes through a variant of an interesting construction in commutative algebra due to Angeniol and Lejeune-Jalabert. The link between the ... M Green,P Griffiths 被引量: 17发表: 2005年 Geometry and...
Mathematics - Algebraic Geometry14H3714H10We give an alternative approach to the computation of the dimension of thetangent space of the deformation space of curves with automorphisms. Ahomological version of the local-global principle similar to the one ofJ.Bertin, A. M\\'ezard is proved, ...
E Markman - 《Journal of Algebraic Geometry》 被引量: 113发表: 1999年 The Riemannian geometry of the Yang-Mills moduli space Continuing with notation, we denote by Ω k (M,g) the space of k-forms on M with values in the adjoint bundle ad P := P ×ad g and by dA : Ω k ...
Moreover, the holomorphic sectional curvature of the obtained Kahler Einstein structure is constant. Two special cases are also studied. 关键词: tangent bundle Kahler manifold Kahler Einstein manifold locally symmetric space DOI: doi:10.1007/BF02413503 被引量: 23 年份: 1968 ...
Throughout the paper, Rn denotes the n-dimensional Euclidean space equipped with the standard norm ‖x‖=x12+…+xn2 where x=(x1,…,xn); B‾n(x,r), Bn(x,r) and Sn−1(x,r) denote respectively the closed ball, the open ball and the sphere in Rn of radius r centered at x....
name=algebraic; (optional) specify the name and value of the third parameter in the case wherefis given as equation pt - Vector; in the case wherefis given as an equation, the point at which the tangent plane is to be computed can be specified as a 3-element Vector ...